I've just thought of something that may be a little more do-able
. Maybe there is a plug-in to intergrate WMP inside IE, rather than a fully-fledge IE inside WMP?
Just an idea. But, it sounds like it's more likely to have been done, or be done. I mean, I know that the media bar (which is WMP) does already exist inside IE. But, it's not a fully-fledge player.